Matrix assembly stick



. N. LEWANDOSMII figfip MATRIX ASSEMBLY STICK Filed June 27, 1949 ZNVEN 217R ANTON mmwmncsm H)" ATTORNEYQ Patented Sept. 15, 1953 UNITED STATES PATENT OFFICE The invention relates to holders commonly called sticks which are used for the assembly of matrices preparatory to the engagement of the same with a type casting machine. More particularly the invention relates to sticks which are used in connection with casting machines of the Ludlow type.

It is the object of the invention to obtain a construction of stick adapted to receive and hold matrices of different constructions and to present the same in cooperative relation with a casting machine other than the one for which they are specifically designed.

It is a further object to obtain a construction of stick with which the matrices can be rapidly engaged by the compositor and locked for engagement with the casting machine.

With these objects in view, the invention consists in the construction as hereinafter set forth.

In the drawings:

Fig. 1 is a perspective view of my improved stick open to receive the matrices, a few of which are shown in engagement therewith;

Fig. 2 is a perspective View in reverse position of a particular construction of matrix not specifically designed for use in the casting machine with which the stick is to be used;

Fig. 3 is a bottom plan view of the stick;

Fig. 4 is a longitudinal section showing a series of matrices in clamped engagement therewith;

Fig. 5 is an end elevation;

Fig. 6 is a cross section through the stick indicating in dotted lines its relation to the casting machine;

Figs. 7 and 8 are perspective views of exchangeable head casting and sealing bars for alternative detachable engagement with the stick.

As above stated, my improved stick is designed for use more particularly with casting machines usual construction of stick. I have therefore devised a modified construction of stick capable of being used with matrices of different constructions in cooperative relation with a casting machine for which they are not designed. As illustrated in Fig. 2, A is a matrix such as designed Also the matrices 2 Claims. (01. 1991) for use with the Linotype casting machine. It is of a generally oblong, rectangular form, the long dimension of which is transverse to the line of the assembled series of matrices. The thickness is the minimum dimension and the third dimension is of a length intermediate the other two. The top and bottom edges, as shown in Fig. 2 (which is in reverse position), have recesses A and A therein leaving pairs of projecting lugs A and A at opposite ends thereof. The intaglio portion or matrix proper A is between the lugs A and A and is of variable length. Other features of the construction are designed for cooperation with a Linotype machine and need not be further described.

My improved construction of stick comprises an oblong, rectangular frame including spaced parallel side bars B and B and connecting end heads C and C. The space between the bars B and B is adapted to receive the long dimension of the matrix A. D and D are spaced parallel bars extending longitudinally at the bottom of the frame to engage the recess A of each matrix and on opposite sides of the portion A. These bars D and D therefore form a seat for the matrices, holding the same in accurate alignment with each other and also constituting mold faces for the head of the casting. As the width of the matrix proper A varies in diiierent matrices, one or both of the bars D and D are exchangeable so that the space therebetween may correspond in dimension to the portion A Figs. 7 and 8 show bars of different widths, which are exchangeable and may be used either as the bar D or D or both. It will be noted that the end portions D of these bars are of the same width and are of a dovetail cross section adapted to engage a corresponding dovetail recess D in the head C being held therein by pins D A similar construction is formed at the opposite end of these bars for engagement with corresponding recesses. Thus by exchanging bars, the width of the space therebetween may be varied to correspond to the dimension of the portion A of the matrix. The opposite or rear side of the frame B is open for the insertion of the matrices, but after the whole series is assembled a bar E hinged at E to the head C may be turned down into the recesses A of all of these matrices to hold them in contact with the bars D and D. There is also a longitudinally adjustable clamping head F adjacent to the head C which is actuated by a screw G engaging a threaded aperture therein. This screw is swiveled in the head C and has an actuating knob G by which it may be 3 turned to move the head F. The head F also has dovetail recesses D for sliding engagement with the opposite end portions D of the bars D and D.

With the construction of stick as above described matrices such as A, or of other constructions, may be quickly assembled in the frame, the bar E being turned back as illustrated in Fig. 1. This bar is then turned down after which the knob G is turned to move the head F and to clamp the series. The stick may then be placed in engagement with the casting machine (not shown) but the dotted lines H indicate the portion of the machine a ainst which the bars D and D are pressed by a clamping member I also indicated in dotted lines. The member H constitutes the mold for the shank of the casting and has a slot therein of corresponding width through which the molten metal may be forced into contact with the matrices. The bars D and D form the opposite sides of the head of the casting and also form sealing engagement With the mold portion H. Thus various constructions of matrices may be assembled in the stick and held thereby in operative relation to the casting machine.

What I claim as my invention is:

1. A matrix stick comprising an oblong rectangular rigid frame including end heads and opposite side bars spaced to receive the matrices therebetween, a pair of bars extending longitudinally over a transverse side of said frame between said side bars and forming aligned seats for the face edges of said matrices on opposite sides of the intaglio portions thereof, said bars being exchangeable and having end portions for engaging fixed bearings on said frame, and intermediate portions of selected width to adjust the width of space therebetween in correspondence with the width of the intaglio portion of said matrices, a bar for engaging the opposite edges of said matrices when assembled in said frame to hold the same against said seats, and an adjustable head on said frame for clamping the series of assembled matrices, the whole forming a unit operatively engageable with a casting machine of the Ludlow type.

2. The construction as in claim 1 in which each of said pair of bars has a portion forming a dovetail sliding engagement with said adjustable head.

ANTON N. LEWANDOSKI.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 741,423 Weeks Oct. 13, 1903 1,290,805 Thompson 1- Jan. 7, 1919 1,886,772 Williams Nov. 8, 1932 1,910,566 Rogers May 23, 1933 1,980,112 Stouges Nov. 6, 1934 2,038,750 Morrison Apr. 28, 1936 

